Bumper



May 15, 128.'

K. O. SCHAUMAN ET AL BUMPER Filed June 23, 1927 Patented May 15, 1928.

KARL soHAUM'AN, STIRLING 3.; YANCEXANDYJOSEL- liiiiiifiii, or itiiix z jid tk, y AssIeNoRsTo SURE-GUARD CORPORATION, or NEW YORK, NWYJ, A CORPORATION 1 OF NEW YORK.'

Attention fild Julie 23, 955. s n'aizbbeiii.

iiiifen'tiefi eiz tesre tin in pro enieht in huiiipe i's i uards fpr vehicles especml'ly netor yehieles our iiiventip'fi is intended t9 p 'dclnee ztsiifiiple, resilient and yet silfiifeientl fstitt h'imiper Which can he applied to either end (if it veliiele and which will protect the vehi'cleiwhich carries it and the Vehiele which strikes it from injury, to zt great extent et least we which, else, s

intended tb guard 2t pedestrian from serious with epparetiisfwhieh acts either ele'ctric'zilly ineehgtiliczilly, Pi'teufiitttlilallY, r l'iyic'lreiy licz lly toepply the brztl'ies', Cut o'lt the ignltioni 0r Operate time-1 or audible sigi'itls when 'the bumper is struek. {I

O iir imp-owed bumper works 'tb' itcli'lgtrf itege in cqnnfctib nj With of tliese ifistr'iinientalities, which will zippetir from the description ivliieh follo ivslz 1 Reterenee is tohj hzitl t0 the aectiinpenying= then ings fo min pitit ot this spil'cifiegtion in which siinilei' reference diameters te sil'n iler pziits' thi'oilghout the several views; a V

Figure l is a plan View the Lbuinper e boclying 61hr invention slidwing' it at taehed t0 vehicle rzyih I v, Figure 2 is a front elevation of the bumper, I l p I Figure Sis e11 enlarged section spring eoiipl ing 'on the tit' Fignre Figure 4: is a' broken tel'ce View of the v 'ul- 1 v ceuphng WhlCll connects some of the spring l ent t v i t Figure 5 is a deta l on the line 55 of gu enl-e- .i A. is x F i'g ire 6 is a cletziil section OIi the oi ggre 1. k .Fi-gu line 4 is it bro ken plan Vieii of a iiiejdi ficatien ef the beepe H jin u p 8 13g ol'zn dtail bf part of omelet thespringextensiens, I T e hiimper can be 'eo l vliientlj applied t t tart 0 o a Vehi l an there s usu ally a" rail or cross bar near the and of the ehicle corresponding to i the structure sh Wn; Tethis is zipp'liecl rigidly 2} plate 11 zjint'l ne er the center of this plete and en the outer side is seet retl' an open channel iron 12 yith the open side This can be comm vlifl r .1 1iedi the p 11 y a bolt 13, 51nd it ifforc'ls a rigid support fer the hen spring l t which is" Of 2i Width to fit nicely in the ehe nnelwith its back to the bziclt f the; cl 12111111631 and with its Widest part vertically ranged.

p The spring 135 bows eiitward from both sitlie's pt t fe chgiiii el 12 itsth'e drawingsh ms endeo nects tiith the other elen'ients of the bumper the ctnipl figs 15 it each end of t hefsprin'g lt y'vhieh provides for a slight sit-ding 01" lost motion is Will hereintttter zippeer, h

lhe ends of the spring 14 Connect thi'qugh theeouplingsllfi tvitlrth e springs lti which retl'ly serve as extensions of the springs 16%. These springs 16 curve inward as shdx'tn in Figiire 1 an'd are b ent shzirply in'wzircl and sli htl'y forwtirtl as it 17, their end portie'i'i's being parallel With member mid bein}; sec-tli' etl between clamping b'locks 19 on y l A 1; Y, i shown at 16 and the outer part can have ii'ib' the slq't. This air r1 e i h V the bumper inore sensitive 511d enebles it to resptiiid t6 itsfljinner intiven entwhen it isstrnck; at any-ti e tiilii'bh iiight if'et be gfiecciye if v the ext'e ns'ieii m n ber he e n ne "1 6 "Th s' sp i e is et-many pushed fdttttttdhy light springs ttrraiiecl lheett the hithiper and teams fli s 1535a thei hiebks' 19. Thes sp tting-s def n prevent the inv'iitrd inbveiifiei t bf the 'er6ss s'pi in'g when the mhi e l l wd W. m fi Ezt'eh dtplifi 15 i n 0 l1i "e s in part a Gas 1 522 .o i 912d Oi w h is i ht a p y at 22 ztiitl slotted as at 23 te receive the i'i'einber 10. Sets'ereWs can be used" ly locl; them in place.

,bossl) and apart of the spring 16.

the transverse cables 24. These cables are preferably of wirebut they can be of any approved material and there can be any desired number oi them. I

In the drawing, we have shown two cables whiclrare placed in parallel relation and form the outer flat coiitactingsurface of the bumper. The ends of the cables can be fas tened in any convenient way but we have" shown a preferredway in which, the cable ends arethrust through holes in plates (see Figure 8) and in a middle plate 26, the latter beinganormally out of registry with the other plates. i

The three plates comprising the two plates 25 andthe plate itiare then wedged into their pocket 27 between the; lug 28 of the I This forces the plate 26 tomove so as to bend the cable ends as the drawing shows andsecure- The boss 29 is held iniplace by a screw 30 which fastens the spring end 16 to the boss and which, also,-extends through a equipped with slot 14K in the end ofthe spring 14. The

casing 21 isheld to the boss by the screw 31 and, thus it will be seen that the coupling. 1 5 secures the meeting ends of the springs 14. and16 so as topermit a slight 30 on each side of the central partof the spring toinsure contact and opposite these contacts which are movable, are the fixed contacts 33 which are supported in insulation 34 in the plate 11. Thus, ifthe bumper n is struck or strikes, anything, its inward movement will distribute the shock through the several plates as described and more par ticularly pomtedout below and Will be sure to close one pair of contacts which will be .suflicientto close theopcrating circuit of the oar control.

Some of these. controls are not operated" electrically or tripped electrically but are tripped or operated by the movement of some part as, for example, a rod. To adapt the bumper to this type of control, it is only necessary to substitute abutments for the contacts 32 and mount slide rods 36 in the plate 11 opposite the abutments' so that when the .abutments are moved inward by the action of the bumper, itwill move one oriboth of the rods. These rods can be nor.-

mally pressed outward by springs 37 abut ting against a collar 38 which may be supported on a convenient part of the car.

From the foregoing description, it will be seen that we have produced a very simple and inexpensive bumper which can be conveniently attached and which has the springs let and 16 supported in such a way that any shock caused by impact against the cables 24 will be distributed through a very longextent of how springs and the slight lost motion between the springs 14 andlfi peiinitsa slight sliding oi the couplings 1.)

before shock is imparted to the spring 14.

Arrangement'of thisspring so that it is held freely but firmly near the center, per

mits itto adjust itselfto shocks coming I from practically any direction against it and it willbe noted that the structureis very firm and that besides offering a reliable yielding resistancetoimpact, it, also, affords a positive means of: transmitting its motion either through an electric circuit or other means to work any usual or preferred type of car control.

e claim:

. 1, A vehicle bumper comprising a bow spring su :iported near the center to move transverse y and lengthwise of the spring, and guard members connecting the outer end parts o fj this spring.

2. A" vehicle bumper comprising a bow spring having its middle portion mounted in a support, lateral extensions extending from the outer end parts of the springvmembers, and curving back, and supported at the sides of the middle part of the spring, and guard members connecting the outer end arts of the bow spring. 1-

spring, ineansfor supporting the spring-at lts middle portion, spring extensions connected with the end portions of the bow spring, and extendinglaterally and inwardly with their ends anchored, and guard members'connecting the outer parts of the bow spring.

4. A vehiclebumpercomprising' a'bow spring, means for supporting the bow spring near its middleportion. to permit movementlengthwise oi the spring, and] also an outward and inward movement with relation to its support,- extension spring members connected to the outer ends of the. bow spring, said members curvinglaterally and inwardly and being anchored at their inner ends, and guard members connecting the outer parts of the bow spring.

5. A vehicle bumper comprising a bow spring, means for supporting theispring near its middle portion, laterally extending I 3. A vehicle bumper comprising a bow spring members having a sliding connection with the bow springvends, and their inner ends anchored to a support, and guard members connecting theouter end parts of the bow sprin 6. A vehicle bumper comprising a bow spring, means for supporting the middle portion of the spring on a vehicle, spring extensions curving laterally and inwardly "from the bow spring ends, means for anchoring the inner ends of the extensions, guard members connecting the outer parts of the bow spring, and couplings uniting the guard members, bow spring ends, and extensions.

7. A vehicle bumper comprising a bow spring, means for supporting the back of the spring on a vehicle, laterally extending spring members connecting the bow spring ends with a rigid support, guard members connecting the outer port-ions ot the bow spring ends, and means for adjusting the guard members. i

8. A vehicle bumper comprising a bow spring, means for supporting itsmiddle portion to permit a limited tree m vement, lateral spring extensions connecting the bow spring ends with a support, a sliding connection bet-ween the extensions and bow spring, and guard members coupled to the outer portions of the'bow spring and the outer portions of the extensions.

9. A vehicle bumper comprising a rigid channel member, a how spring with its back held in the channel, and its inembers'extending outwardly and laterally, lateral spring extensions connecting the bow spring ends with a support, and guard members connecting the outer parts of the bow spring.

10. A vehicle bumper comprising a bow spring supported near its center, and with its arms projecting outwardly and laterally, guard members connecting the outer parts of the bow spring, and members actuated by the movement of the bow spring to set in motion an adjacent and independent part.

11. A vehicle bumper comprising a bow spring supported near its center portion, lateral spring extensions connected with the outer parts of the bow spring, and curving laterally and inwardly to a support, guard members connecting the outer parts of the bow spring, and auxiliary members actuated by the inward.movement of the bow spring and acting to set in motion an independent part.

12. A vehicle bumper comprising a bow spring supported near its middle portion and with outwardly diverging arms, guard members connecting the outer end parts of the bow spring, and an electric contact actuated by the inward movement of the bow spring.

13. A vehicle bumper comprising a bow spring supported nearits center and with outwardly and laterally extending arms, guard members connecting the outer end parts of the bow spring,and electric contacts disposed on opposite sides of the middle part of the bow spring and actuated by the inward movement of said bow spring,

14. A vehicle bumper according to claim 2 further characterlzed by the fact that the lateral extensions are in separate parts having a limited sliding movement one on the other.

In testimony whereof, we have signed our names to this specification this 21st day of June, 1927.

KARL O. SCI-IAUMANQ STIRLING R. YANCEY. JOSE L. MIFSUD. 

